If water is boiled and steam is produced this is a physical change because the water particles are?

When water is boiled and steam is produced, this is a physical change because the water particles remain H₂O molecules throughout the process. The transition from liquid to gas involves an increase in energy and movement of the particles, but their chemical composition does not change. Thus, when the steam cools down, it can condense back into liquid water, demonstrating the reversible nature of this physical change.